United Nations Directories for Electronic Data Interchange for
Administration, Commerce and Transport

UN/EDIFACT

Change indicators
a plus sign (+) for an addition
an asterisk (*) for an amendment to structure
a hash sign (#) for changes to names
a vertical bar (|) for changes to text for descriptions and
notes
a minus sign (-) for marked for deletion (within either
batch and interactive messages)
a X sign (X) for marked for deletion (within both batch
and interactive messages)

3077 Test medium code [B]

Desc: Code specifying the medium on which a test was or is
to be applied.
Repr: an..3
Code Values:
1 Animal
Specifies the medium being tested is an animal.
2 Human
Specifies the medium being tested is a human.
3 Sulphide
Specifies that the medium being tested is the sulphide
component.
4 Aluminate
Specifies that the medium being tested is the aluminate
component.
5 Silicate
Specifies that the medium being tested is the silicate
component.
6 Oxide
Specifies that the medium being tested is the oxide
component.
ZZZ Mutually defined
A code assigned within a code list whose meaning is
agreed among partners to be used on an interim basis
until a precise code can be assigned to the code list.